| 单词 | Huygens |
| 例句 | This theory, like Huygens’s theory of oscillating systems, grew out of a piece of practical work connected with astronomy. The Scientists 2003-10-21T00:00:00Z The Voyager spacecraft are the lineal descendants of those sailing-ship voyages of exploration, and of the scientific and speculative tradition of Christiaan Huygens. Cosmos 1980-01-01T00:00:00Z The Viking search for life on Mars can be traced in more ways than one back to Leeuwenhoek and Huygens. Cosmos 1980-01-01T00:00:00Z Nevertheless, it has been claimed that the innovations of Galileo, Hooke and Huygens made possible the geared machinery of the Industrial Revolution. The Invention of Science 2015-09-17T00:00:00Z By and large Huygens imagined the environments and inhabitants of other planets to be rather like those of seventeenth- century Earth. Cosmos 1980-01-01T00:00:00Z Many properties of light, including diffraction, are naturally explained by the wave theory, and in subsequent years Huygens’ view carried the day. Cosmos 1980-01-01T00:00:00Z Constantijn Huygens, a poet and diplomat of the time, remarked that the Town Hall dispelled “the Gothic squint and squalor.” Cosmos 1980-01-01T00:00:00Z The Voyagers are caravels bound for the stars, and on the way exploring those worlds that Huygens knew and loved so well. Cosmos 1980-01-01T00:00:00Z Mace was probably aware of Galileo's research, which included the design - not made in his lifetime - of a pendulum clock that pre-dates Huygens by fourteen years. The Story of Music 2012-12-25T00:00:00Z It is hard to remember just how bright a star is many hours after you look at it, but Huygens remembered very well. Cosmos 1980-01-01T00:00:00Z The clock was designed by Dutch scientist Christiaan Huygens - who incidentally had published essays on the physics of music - and built by clockmaker Salomon Coster. The Story of Music 2012-12-25T00:00:00Z Between the times of Aristarchus and Huygens, humans answered the question that had so excited me as a boy growing up in Brooklyn: What are the stars? Cosmos 1980-01-01T00:00:00Z But in Holland, the astronomer Christiaan Huygens, who believed in both, was showered with honors. Cosmos 1980-01-01T00:00:00Z Huygens became one of the first foreign members of the Royal Society on a brief visit to London in 1663. The Scientists 2003-10-21T00:00:00Z Similar clocks spread across Europe later in the seventeenth century following the independent work of Christiaan Huygens. The Scientists 2003-10-21T00:00:00Z In spite of the war between France and The Netherlands, Huygens’s life was mostly without incident outside his scientific work. The Scientists 2003-10-21T00:00:00Z In spite of his continuing ill health, Huygens made a few more foreign trips, including another visit to London in 1689, when he met Newton. The Scientists 2003-10-21T00:00:00Z It was not until the time of Louis Pasteur, two centuries later, that Huygens’ speculation was proved correct. Cosmos 1980-01-01T00:00:00Z Huygens was, of course, a citizen of his time. Cosmos 1980-01-01T00:00:00Z Huygens did not shrink from this conclusion; he embraced it gladly: Across the sea of space the stars are other suns. Cosmos 1980-01-01T00:00:00Z The fact that Aristarchus and Huygens used imprecise data and derived imperfect answers hardly matters. Cosmos 1980-01-01T00:00:00Z Huygens had contributed to the design of the first microscopes and himself made many discoveries with them. Cosmos 1980-01-01T00:00:00Z It was from 1658 onwards, and thanks to Christiaan Huygens, that ordinary people began to have access to accurate timepieces, instead of estimating the time of day by the position of the Sun. The Scientists 2003-10-21T00:00:00Z Huygens was still looking for explanations; Newton had left the world of explanation and entered a new world, the world of theory. The Invention of Science 2015-09-17T00:00:00Z One can reasonably say, then, that Huygens had been wrong to claim that his result was in some way ‘better’ than Boyle’s, and wrong to abandon his earlier beliefs in the light of it. The Invention of Science 2015-09-17T00:00:00Z In 1680 Huygens came up with an alternative way of harnessing atmospheric pressure. The Invention of Science 2015-09-17T00:00:00Z Huygens had always suffered from ill health, and although he was based in Paris for the next fifteen years, he twice had to return to Holland for lengthy periods to recuperate from sickness. The Scientists 2003-10-21T00:00:00Z Christiaan Huygens loved to grind and polish lenses for astronomical telescopes and constructed one five meters long. Cosmos 1980-01-01T00:00:00Z Of the presumed inhabitants of the moons of Saturn, Huygens therefore wrote: “It is impossible but that their way of living must be very different from ours, having such tedious Winters.” Cosmos 1980-01-01T00:00:00Z Were the discoveries of Galileo, Hooke and Huygens irrelevant? The Invention of Science 2015-09-17T00:00:00Z If Huygens was born with a silver spoon in his mouth, Boyle was born with a canteen of cutlery in his. The Scientists 2003-10-21T00:00:00Z Huygens’s early work was chiefly in the field of mathematics, where he made improvements in existing techniques and developed his own skills, without making any major new breakthroughs. The Scientists 2003-10-21T00:00:00Z Today, few people know about Huygens’s work on clocks. The Scientists 2003-10-21T00:00:00Z Growing up in this environment, the young Christiaan Huygens became simultaneously adept in languages, drawing, law, science, engineering, mathematics and music. Cosmos 1980-01-01T00:00:00Z The book was completed after Huygens had returned to Holland in 1691, partly because of his deteriorating health, but also because the political climate in France had shifted once again. The Scientists 2003-10-21T00:00:00Z Huygens pumped away, air was removed, but the water level failed to fall. The Invention of Science 2015-09-17T00:00:00Z The Huygens brothers found a way to reduce chromatic aberration considerably by using a combination of two thin lenses in the eyepiece of a telescope, instead of one fat lens. The Scientists 2003-10-21T00:00:00Z An early experiment to answer this question was performed by Christiaan Huygens, very much in the Ionian tradition. Cosmos 1980-01-01T00:00:00Z His father was Constantijn Huygens, a master diplomat of the age, a litterateur, poet, composer, musician, close friend and translator of the English poet John Donne, and the head of an archetypical great family. Cosmos 1980-01-01T00:00:00Z Papin had worked with two of the greatest scientists of the day, Huygens and Boyle. The Invention of Science 2015-09-17T00:00:00Z Huygens worked on the mathematics of the pendulum and the design of watches, but he also discovered the rings of Saturn. The Invention of Science 2015-09-17T00:00:00Z Huygens was delighted that the Copernican view of the Earth as a planet in motion around the Sun was widely accepted even by the ordinary people in Holland. Cosmos 1980-01-01T00:00:00Z The Huygens home was filled with goods from all over the world. Cosmos 1980-01-01T00:00:00Z In 1661 Christiaan Huygens built his own air pump and began repeating the standard experiments. The Invention of Science 2015-09-17T00:00:00Z Leeuwenhoek was the executor of Vermeer’s estate and a frequent visitor at the Huygens home in Hofwijck. Cosmos 1980-01-01T00:00:00Z Leeuwenhoek and Huygens were among the first people ever to see human sperm cells, a prerequisite for understanding human reproduction. Cosmos 1980-01-01T00:00:00Z The eldest son was to inherit the mill, and Rembrandt was apprenticed to a painter at age 15, and recognized as a prodigy by one of the Netherlands’ most powerful art brokers, Constantijn Huygens. Rembrandt Died 350 Years Ago. Why He Matters Today. 2019-02-27T05:00:00Z Two decades later he would be working as a space scientist at the University of Kent when the opportunity arose to become part of Esa's Huygens mission to Titan. Destination Titan: Mission impossible? 2011-04-08T16:21:00Z His Open University team designed key instruments for the probe, which is named after the 17th-century Dutch astronomer Christopher Huygens who discovered Titan. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z These provided enough data to fill no more than a simple memory stick, making Huygens's results some of the most expensive and precious to be collected by scientists. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z It had taken engineers a decade to plan and construct Huygens, Europe's unmanned mission to this mysterious world. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z Then it condenses and falls as methane rain, sometimes setting off flash floods that carve out riverbeds like the ones picked out by the cameras on Huygens. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z We had talked up Titan as an incredibly exciting place in order to get the space agencies to fund Huygens. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z Devices on board Huygens have detected ethane, acetylene and other complex hydrocarbon molecules – an oilman's dream. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z In it, Huygens reviews both artists at length, judiciously noting their flaws and considerable strengths. ‘Rembrandt’s First Masterpiece,’ a Portrait of a Biblical Betrayal 2016-06-02T04:00:00Z It is, therefore, of enormous scientific importance, according to Al Diaz, science associate administrator of Nasa, which collaborated with Europe on Huygens. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z "Titan is a time machine that gives us a chance to look at conditions that existed on early Earth," he said after Huygens's results were received. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z I've often joked that over the past six years, the production has gone through as many twists and turns as the Huygens probe on the way to Titan's surface. Destination Titan: Mission impossible? 2011-04-08T16:21:00Z It was also an age of Dutch enlightenment, the age of Rembrandt, Spinoza, Grotius and Huygens. The full story of the British empire is yet to be told 2012-12-28T19:31:12Z The show is fleshed out with work by some of the master’s followers, and by the Morgan’s own “Codex Huygens,” a late-16th-century manuscript that has faithful copies of now-lost Leonardo drawings. Museum and Gallery Listings for Dec. 6-12 2013-12-06T01:03:39Z If Huygens had failed, it would have been a disaster. Welcome to a new Eden ? two billion miles from Earth 2010-05-08T23:06:00Z Isaac Newton concluded that light consists of particles in 1672; Christiaan Huygens developed his wave theory of light six years later. The Most Surprising Discoveries in Physics 2023-07-27T04:00:00Z After some time, Turchin notes, they "all start swinging together in perfect synchrony," as first observed by Dutch scholar Christiaan Huygens in 1665. A short history of civilizational collapse: Are we next — and how can we prevent it? 2023-07-02T04:00:00Z Famed 17th century Dutch scientist Christiaan Huygens may have needed eyeglasses—and, lacking them, baked some fuzziness into the lenses he designed for his pioneering telescopes, a study has suggested. News at a glance: Hubble interlopers, an ocean-drilling gap, and a near-sighted astronomer 2023-03-08T05:00:00Z In the meantime, however, despite observations by Voyager 1 in 1980 and the Cassini Saturn orbiter and its Huygens lander in 2004-5, planetary scientists’ models of Titan’s atmospheric dynamics were still only tentative. Telescopes Team Up to Forecast an Alien Storm on Titan 2022-12-05T05:00:00Z In addition, we will see that Huygens’s principle tells us how and where light rays interfere. College Physics for AP Courses 2015-08-12T00:00:00Z The question lingered for two centuries until James Clerk Maxwell’s profound and leucippitous discovery that light favors Huygens’s wave theory. The Most Surprising Discoveries in Physics 2023-07-27T04:00:00Z At the end of its parachute descent, the 319-kilogram Huygens probe safely touched down, slid a short distance, and began sending data back to Earth, including photos and analyses of the atmosphere. Astronomy 2016-10-13T00:00:00Z With the instruments, Huygens studied Saturn’s rings and discovered its moon Titan. News at a glance: Hubble interlopers, an ocean-drilling gap, and a near-sighted astronomer 2023-03-08T05:00:00Z ESA has RHUs leftover from its Huygens Probe, which dropped to the surface of Titan in 2005, but they have a lower power output than the Russian ones. Europe fights to keep Mars rover alive after split with Russia 2022-03-28T04:00:00Z Figure 27.7 Huygens’s principle applied to a straight wavefront traveling from one medium to another where its speed is less. College Physics for AP Courses 2015-08-12T00:00:00Z Although a European space probe, Huygens, parachuted to its surface in 2005, Titan’s magnificent hostility is, in its totality, hard to understand from a hospitable planet like this one. You Don’t Need a Spaceship to Grow ‘Weird Little’ Martian Radishes 2021-12-28T05:00:00Z The photos taken during descent showed a variety of features, including drainage channels, suggesting that Huygens had landed on the shore of an ancient hydrocarbon lake. Astronomy 2016-10-13T00:00:00Z The extent of the lenses’ fuzziness indicates that if Huygens’s vision was impaired, it was mild enough that he might not have noticed it, Pietrow wrote. News at a glance: Hubble interlopers, an ocean-drilling gap, and a near-sighted astronomer 2023-03-08T05:00:00Z In 1655 Dutch astronomer Christiaan Huygens set up a refractor telescope of his own construction and aimed it at Saturn. The Race to Find Alien Moons 2021-03-31T04:00:00Z Although Christiaan Huygens thought that light was a wave, Isaac Newton did not. College Physics for AP Courses 2015-08-12T00:00:00Z Forty-nine years later, Dutch physicist Christiaan Huygens made its first map, identifying a feature first known as the Hourglass Sea. Mars attracts fans on Earth even though it’s a long-distance love 2020-07-02T04:00:00Z The Huygens probe successfully descended by parachute through the atmosphere, photographing the surface from below the clouds, and landing on January 14, 2005. Astronomy 2016-10-13T00:00:00Z Huygens parachuted to Titan in one piece and found that the large moon is home to seas and lakes filled with liquid ethane and methane, as well as clouds and massive fields of sand dunes. NASA to send flying robot to explore Saturn's moon Titan 2019-06-28T04:00:00Z In 2005, the European Space Agency’s Huygens probe became the first spacecraft to land on Titan. NASA drone will soar over Saturn's largest moon 2019-06-26T04:00:00Z The fact that Huygens’s principle worked was not considered evidence that was direct enough to prove that light is a wave. College Physics for AP Courses 2015-08-12T00:00:00Z Huygens, named for the Dutch physicist Christiaan Huygens, who invented the pendulum clock in 1656, uses so-called machine-learning techniques to synchronize a network of computers to within 100 billionths of a second. Time Split to the Nanosecond Is Precisely What Wall Street Wants 2018-06-29T04:00:00Z The deciphering was done by researchers from the Anne Frank museum, the Institute for War, Holocaust and Genocide Studies and the Huygens Institute of Netherlands History. Anne Frank's diary contains 'dirty' jokes in long-hidden passages, according to new research 2018-05-15T04:00:00Z The deciphering was done by researchers from the Anne Frank Museum, the Institute for War, Holocaust and Genocide Studies and the Huygens Institute for the History of the Netherlands. Anne Frank's 'dirty' jokes found on diary pages she covered over 2018-05-15T04:00:00Z The Huygens probe, built by the European Space Agency, landed on Titan in 2005. Finalists in NASA’s Spacecraft Sweepstakes: A Drone on Titan, and a Comet-Chaser 2017-12-19T05:00:00Z Does Huygens’s principle apply to all types of waves? College Physics for AP Courses 2015-08-12T00:00:00Z Whereas Isaac Newton thought light was made up of particles, his contemporary the Dutch scientist Christiaan Huygens argued that it consisted of waves. Space-Based Test Proves Light's Quantum Weirdness 2017-10-25T04:00:00Z Louis XIV, who expelled the Protestants from France in 1685, had previously hired Protestants such as Christiaan Huygens for his Academy of Sciences. History: Science and the Reformation : Nature : Nature Research 2017-10-24T04:00:00Z Observations by both Cassini and Huygens revealed Titan in all its otherworldly glory. Cassini's End Marks New Beginning for Exploration of Saturn 2017-09-18T04:00:00Z Unlike some of the Martian landers, many of which lasted years, Huygens’ moment in the sun was designed to be brief. Cassini’s other legacy: landing the first (and only) probe on another world’s moon 2017-09-16T04:00:00Z Huygens’s principle works for all types of waves, including water waves, sound waves, and light waves. College Physics for AP Courses 2015-08-12T00:00:00Z After depositing its Huygens probe into the hazy Saturn moon of Titan, Cassini discovered seas of liquid methane. Opinion | The Cassini mission embodies the best of humanity 2017-09-15T04:00:00Z The spacecraft revealed the structure of Saturn's rings and, by delivering the Huygens probe to the moon Titan, executed the first landing of a spacecraft in the outer solar system. The Cassini spacecraft crashed into Saturn, ending a successful 20-year mission 2017-09-15T04:00:00Z Jonathan I. Lunine, a planetary scientist at Cornell University, was a member of the science team managing the Huygens probe, which traveled to Saturn with Cassini and landed on Titan. Back to Saturn? Five Missions Proposed to Follow Cassini 2017-09-15T04:00:00Z Cassini would carry, along with high-powered radar to pierce Titan’s veil of clouds, a European-built lander, Huygens, to touch down on its hidden surface. Cassini's "Grand Finale" Will Be a Blaze of Glory 2017-09-14T04:00:00Z Figure 27.6 Huygens’s principle applied to a straight wavefront striking a mirror. College Physics for AP Courses 2015-08-12T00:00:00Z To get a better glimpse of Titan, the European Space Agency designed the Huygens probe, which the Cassini spacecraft carried until it detached and descended into Titan’s atmosphere in 2005. Opinion | The spacecraft that found for the first time where life could exist now 2017-09-14T04:00:00Z The Huygens craft, provided by the European Space Agency, touched down on Titan — humanity’s first landing in the outer solar system. Cassini was the mission of a lifetime for this NASA scientist. Now she must say goodbye. 2017-09-14T04:00:00Z So Cassini carried with it a lander called Huygens, made by the European Space Agency. Giant storms, methane lakes, and hidden oceans: Cassini’s best discoveries of Saturn and its moons 2017-09-14T04:00:00Z Shortly after its arrival it deployed another probe called Huygens, a robotic laboratory run by the European Space Agency, that landed on the surface of Titan. After exploring Saturn, Cassini faces a fiery end 2017-09-07T04:00:00Z Figure 27.9 Huygens’s principle applied to a straight wavefront striking an opening. College Physics for AP Courses 2015-08-12T00:00:00Z What Cassini and its Huygens probe found was beyond all scientific expectations. Opinion | The spacecraft that found for the first time where life could exist now 2017-09-14T04:00:00Z The Europeans designed the Huygens probe, a separate vehicle that detached from Cassini when it passed close to Titan. How to steer a spacecraft into Saturn 2017-09-09T04:00:00Z Shortly thereafter, in December 2004, Huygens departed the mother ship and made the first landing on an alien moon, touching down in the hydrocarbon slushes of Titan three weeks later. Cassini Flies Toward a Fiery Death on Saturn 2017-09-08T04:00:00Z Another trove of spectacular science was provided by the Huygens lander, which set down on Titan on January 14th 2005. After exploring Saturn, Cassini faces a fiery end 2017-09-07T04:00:00Z Cassini also carried a single passenger: the Huygens lander, built by the European Space Agency and named for the Dutch scientist who first spotted the moon Titan. NASA’s Cassini spacecraft will crash into Saturn — its final screaming success 2017-09-05T04:00:00Z Cassini also made history when it released the Huygens probe, which became the first craft to touch down in the outer Solar System. Cassini’s 13 years of stunning Saturn science — in pictures 2017-08-29T04:00:00Z Cassini’s Huygens probe landed in a frozen world of methane dunes and riverbeds, among other forms of hydrocarbon slush. Cassini’s grand finale: a dive between Saturn and its rings 2017-04-21T04:00:00Z As launched in 1997, the spacecraft consisted of two parts: an orbiter, built by NASA, and a lander, the Huygens probe, built by the European Space Agency to explore Saturn’s largest moon, Titan. Cassini Flies Toward a Fiery Death on Saturn 2017-09-08T04:00:00Z Cassini’s Huygens probe landed in a frozen world of methane dunes and river beds, among other forms of hydrocarbon slush. Cassini’s Grand Finale: A Dive Between Saturn and Its Rings 2017-04-21T04:00:00Z Rulers of maritime nations were acutely aware of the longitude problem: the King of Spain offered a prize for solving it nearly a century before Huygens's work. Tick tock: The importance of knowing the right time - BBC News 2017-04-02T04:00:00Z After a daring two-and-a-half hour descent to the surface of the moon Titan in 2005, Huygens sent back snapshots of a frozen floodplain littered with rocks. Cassini’s 13 years of stunning Saturn science — in pictures 2017-08-29T04:00:00Z It would be the first touchdown in the outer Solar System since 2005, when the European Space Agency’s Huygens probe parachuted onto Saturn’s moon Titan. Why a NASA spacecraft could bounce, crunch or sink on icy Europa 2017-03-20T04:00:00Z Christiaan Huygens discovered Titan and recognized Saturn’s rings for what they are. Cassini Flies Toward a Fiery Death on Saturn 2017-09-08T04:00:00Z Giovanni Cassini, William Herschel, Robert Hooke, and Christiaan Huygens all tried their hand at drawing the planet’s basic features in the 17th and 18th centuries. What Mars Maps Got Right (and Wrong) Through Time Meanwhile, since Huygens and Harrison, clocks have become much more accurate still. Tick tock: The importance of knowing the right time - BBC News 2017-04-02T04:00:00Z In the 72 minutes that Huygens survived on Titan's surface, the battery-powered lander snapped images of a landscape strewn with frozen rocks and cloaked in an orange haze. Cassini’s 13 years of stunning Saturn science — in pictures 2017-08-29T04:00:00Z A short while later, Mr. Huygens suspended Mr. Pijpen, ostensibly for showing up late to a meeting. School’s Warnings About Paris Attacker Were Not Passed On 2015-12-26T05:00:00Z “It also has great stretches of dunes and complex hydrocarbons,” said Zarnecki, who helped design key instruments for the Huygens probe that landed on Titan in 2005. After Mars, hunt for water and life goes deep into the solar system 2015-10-03T04:00:00Z A highlight was the landing of the European Space Agency's Huygens probe on Saturn's largest moon Titan in 2005. Great robotic missions to explore space - BBC News 2015-07-30T04:00:00Z It was visited by the European Huygens probe, which touched down on the surface in 2005. Is Titan submarine the most daring space mission yet? 2015-03-18T04:00:00Z In 1655 Christiaan Huygens described the rings correctly and found Titan, the planet’s largest moon. Saturn: A History [Slide Show] 2015-03-01T05:00:00Z It reminds me of Europe's last great venture to touch down on an alien body: the Huygens mission that descended to the surface of Saturn's moon Titan in 2005. Countdown to historic comet landing 2014-11-11T05:00:00Z A pleasant and a must for really curious people,for Curiosity is at the beginning:COSMOTHEOROS by Christiaan Huygens,Amsterdam,1754. In 'Cosmigraphics,' Our Changing Pictures of Space Through Time 2014-10-13T04:00:00Z When the Huygens craft landed on Titan, one of Saturn’s moons, in 2005, it was NASA’s most distant landing in the solar system to date. A Slice of Life in 1997, When the Orioles Last Made the A.L.C.S. 2014-10-06T04:00:00Z Neither Hooke's nor Huygens' watch proved up to the task. How the world's first smartwatch was built 2014-09-27T04:00:00Z So, when his name was called as prom king during Hawthorne Woods Assisted Living’s senior prom, Huygens was overwhelmed. Assisted living center holds senior prom 2014-05-28T04:00:00Z There were certainly great scientists like Hooke, Huygens, Boyle and Cavendish in the 18th century and many of them might have rightly received the prize. It’s the End of Fundamental Physics... Again 2014-04-16T14:48:52Z Huygens explained how wave theory accounts for geometrical optics. And Let There Be "Molecules" of Light 2013-10-14T20:45:24.920Z One of the earliest recorded attempts at an explanation involved the Dutch polymath Sir Constantijn Huygens and the amateur scientist Margaret Cavendish, Duchess of Newcastle. Whose science is it anyway? 2013-10-11T15:31:49Z "With the King and shewed him my new spring watch, Sir J Moore and Tompion there. The king most graciously pleased with it and commended it far beyond Huygens's. He promised me a patent." How the world's first smartwatch was built 2014-09-27T04:00:00Z Christiaan Huygens stated that light was composed of waves while Isaac Newton argued that light was made of particles. The Chameleon of Quantum Culture: Wave-Particle Duality 2012-12-06T15:15:12.783Z In 2005 the European Huygens probe landed on Saturn’s moon Titan and provided an unprecedented look at the surface. Sensor Info Reveals Titan Probe Landing 2012-10-15T20:45:00.300Z Huygens sent back valuable data from its descent through the moon's thick atmosphere and subsequent touchdown on the surface. Huge vortex spied on Saturn moon 2012-07-11T13:03:09Z She expressed her gratitude to Huygens for seeking her opinion. Whose science is it anyway? 2013-10-11T15:31:49Z In the end, neither Hooke nor Huygens was granted an English patent for the balance-spring watch, since both watches kept less good time than their inventors had promised. How the world's first smartwatch was built 2014-09-27T04:00:00Z And it's long been speculated that Titan contains a hidden liquid layer, based on mathematical modeling and electric field measurements made by the Huygens spacecraft that landed on the surface in 2005. Saturn Moon May Harbor Ocean Below Surface 2012-06-28T19:09:00Z In this form the principle of virtual velocities is identical with Huygens's principle of the impossibility of a perpetual motion. Popular scientific lectures 2012-04-24T02:00:17.273Z Astrology persisted through the Dark Ages, and the great astronomers Copernicus, Tycho, Kepler, Gassendi, and Huygens were all astrologers as well. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z In a letter to her following a visit, Huygens recorded a conversation they had about the drops - at the time known as "Dutch tears" - in her private chemistry laboratory. Whose science is it anyway? 2013-10-11T15:31:49Z The mechanical properties of the cycloid were investigated by Christiaan Huygens, who proved the curve to be tautochronous. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z At about the same time, Huygens heard of an important English invention. A Chronicle of Timekeeping 2011-12-31T05:15:09.740Z But this general demonstration is based after all upon Huygens and Torricelli's remarks. Popular scientific lectures 2012-04-24T02:00:17.273Z The fifteenth and sixteenth centuries, containing the lives and work of Copernicus, Tycho, Galileo, Kepler, Huygens, Halley, and Newton, were a veritable Golden Age of astronomy. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Enclosing several specimens, Huygens begs her to investigate their properties. Whose science is it anyway? 2013-10-11T15:31:49Z C. Huygens and R. Hooke, contemporaries of Newton, saw that Kepler’s third law implied a force tending toward the sun which, acting on the several planets, varied inversely as the square of the distance. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 4 "Grasshopper" to "Greek Language" 2011-11-28T03:00:19.517Z Galileo, the Italian physicist and astronomer, and others before him experimented with pendulums, but a 27-year-old Dutch astronomer and mathematician named Christiaan Huygens devised the first pendulum clock on Christmas Day in 1656. A Chronicle of Timekeeping 2011-12-31T05:15:09.740Z This principle, which appears frequently and with much clearness in Galileo's thought, is simply another form of the principle of excluded perpetual motion, as we shall see it is also in Huygens. Popular scientific lectures 2012-04-24T02:00:17.273Z Another great astronomer whose labors helped immensely in preparing the way for the signal discoveries that were soon to come was Huygens, a man of versatility as natural philosopher, mechanician, and astronomical observer. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z This invention has been credited to Huygens, a Dutch philosopher, who was certainly, if not the discoverer of the pendulum, the first to bring it into practical use, about 1657. Great Inventions and Discoveries 2011-10-01T02:00:30.900Z Making a preliminary comparison between the Scheiner and Huygens diagrams, Können says, "The halo displays on the two diagrams are very close -- there are no halos in the original that are missed in Huygens's reconstruction." Diagram Lost for More Than 350 Years Documents 'Seven Suns' of Rome 2011-09-30T19:15:04.937Z Huygens recognized the commercial as well as the scientific significance of his invention immediately, and within six months a local maker in the Hague had been granted a license to manufacture pendulum clocks. A Chronicle of Timekeeping 2011-12-31T05:15:09.740Z Huygens, upon whose shoulders the mantel of Galileo fell, forms a sharper conception of the law of inertia and generalises the principle respecting the heights of ascent which was so fruitful in Galileo's hands. Popular scientific lectures 2012-04-24T02:00:17.273Z Huygens was born thirteen years before the death of Galileo, and to the discovery of the laws of motion by the latter Huygens added researches on the laws of action of centrifugal forces. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Suppose that Huygens made the experiment alluded to, without design, what he really observed was that the images appeared and disappeared alternately as he turned the rhomb round. A Logic Of Facts Or, Every-day Reasoning 2011-07-22T02:00:18.543Z The gunpowder experiments of Huygens and Papin were not successful, but they were the progenitors of similar inventions made two centuries thereafter. Inventions in the Century 2011-07-20T02:00:14.643Z Huygens saw that a pendulum traversing a circular arc completed small oscillations faster than large ones. A Chronicle of Timekeeping 2011-12-31T05:15:09.740Z One might be led to believe from them that Huygens held a non-mechanical perpetual motion for possible. Popular scientific lectures 2012-04-24T02:00:17.273Z Galileo, Huygens and other early users of the telescope made observations of nebul�, but long-focus telescopes were not well adapted to this work. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z By accidentally combining two rhombs in different positions, Huygens discovered the polarisation of light. A Logic Of Facts Or, Every-day Reasoning 2011-07-22T02:00:18.543Z The Dutch, with Huygens in the lead, were long among the leading clock-makers. Inventions in the Century 2011-07-20T02:00:14.643Z In 1675 Huygens devised another fundamental improvement, the spiral balance spring. A Chronicle of Timekeeping 2011-12-31T05:15:09.740Z Huygens's wave-theory of light was incomprehensible to Newton, and Newton's idea of universal gravity was unintelligible to Huygens. Popular scientific lectures 2012-04-24T02:00:17.273Z But their subsequent disappearance was unaccountable to him, and later observers, who kept on guessing ineffectively till Huygens, nearly a half century after, showed that the true nature of the appendage was a ring. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Cassini was to be the main spacecraft and would go into orbit around Saturn and its moons; Huygens, a landing craft, would ride piggyback on Cassini until its moment came to descend to Titan. Destination Titan 2011-04-08T10:59:33Z But Huygens, the great Dutch scientist, about 1556 was the first to explain the principles and properties of the pendulum as a time measurer and to apply it most successfully to clocks. Inventions in the Century 2011-07-20T02:00:14.643Z The observations of Richer in South America, the theoretical discussions of Newton and Huygens, and the measurements of degrees of latitude in Peru and Sweden demonstrated that the earth is an oblate spheroid. Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966 2011-01-22T03:00:16.753Z The explanation of the bow-wave of a ship and that of the head-wave of a body travelling in atmospheric space both repose upon the same principle, long ago employed by Huygens. Popular scientific lectures 2012-04-24T02:00:17.273Z He threw in his lot with the great school of Amsterdam, and became the intimate friend and companion of Vondel, Huygens. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z The Canterbury team managed to regroup though, and successfully reworked their Vesta proposal for Huygens instead. Destination Titan 2011-04-08T10:59:33Z In January 2005, the Huygens probe landed in what looked like a fluvial plain with channels carved by methane. Hints of Earth Splash a Saturnian Moon Landscape 2010-07-26T22:16:00Z Huygens also created the theory of centripetal force which made it possible to calculate the effect of the rotation of the earth upon the observed value of gravity. Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966 2011-01-22T03:00:16.753Z Toepler's method, accordingly, enjoys all the advantages of the Huygens and the Foucault procedure combined. Popular scientific lectures 2012-04-24T02:00:17.273Z Huygens had little of the sweetness of Hooft or of the sublimity of Vondel, but his genius was eminently bright and vivacious, and he was a consummate 725 artist in metrical form. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Lorenz was given the job of designing the Huygens penetrometer, the part of the spacecraft that would make first contact with the surface of Titan. Destination Titan 2011-04-08T10:59:33Z On Christmas Day of that year, the European Space Agency probe Huygens detached itself from Cassini and began a slow descent to the surface of Titan. Thin line 2010-03-20T12:43:00Z Earlier, in 1657, Huygens independently had invented and patented the pendulum clock, which rapidly came into use for the measurement of time. Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966 2011-01-22T03:00:16.753Z Huygens, whose discoveries and inventions are justly sufficient to entitle him to an opinion in such matters, lays great emphasis on this factor. Popular scientific lectures 2012-04-24T02:00:17.273Z A blind admiration for John Donne, whose poems he translated, was the greatest fault of Huygens, who, in spite of his conceits, remains one of the most pleasing of Dutch writers. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z For now, though, the Huygens lander remains the most distant surface outpost for humanity in the Solar System. Destination Titan 2011-04-08T10:59:33Z As it descended through the smog, Huygens captured images of a craggy, rocky-looking landscape. Thin line 2010-03-20T12:43:00Z Huygens derived a theorem which has provided the basis for the employment of the reversible compound pendulum for the absolute determination of the intensity of gravity. Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966 2011-01-22T03:00:16.753Z Not surprisingly then, as soon as Huygens's own children were old enough, their father made sure that they too had musical skills that would help them get on in court circles. 2010-02-12T17:08:00Z Huygens contends that between the inhabitants of different planets there need not be any greater difference than exists between men of different types on the earth. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" This emission theory of light was abandoned in favour of Huygens' undulatory theory. The Mechanism of Life He also received the De Morgan medal from the London Mathematical Society, and the Huygens medal from Leiden. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" The reversible compound pendulum has served for the absolute determination of gravity by means of a theory developed by Huygens. Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966 2011-01-22T03:00:16.753Z The price was, however, Huygens's cousin wrote, unacceptably high. 2010-02-12T17:08:00Z The climax was reached when Mrs. Huygens, wife of the minister from Holland, on finding herself placed next to Mrs. Eaton at dinner, turned and swept from the room on the arm of her husband. Women of America Woman: In all ages and in all countries Vol. 10 (of 10) The molecules emanating from our drop are diffused in straight radiating lines, and yet produce periodic precipitates which are subject to interference and diffraction like the undulations of Huygens. The Mechanism of Life He was, however, intimate with Constantin Huygens, whose political opinions were more nearly in agreement with his own. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" Since there was some delay, he renewed the appeal, though Huygens, on February 17th, had already given orders for the discharge of the debt. Great Masters in Painting: Rembrandt van Rijn Four months on, the cousin let Huygens know that the outcome of his extended negotiations concerning the musical instruments had been successful. 2010-02-12T17:08:00Z The principle employed in these investigations is due to C. Huygens, and may be thus formulated. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" It was to a Balance escapement. balance escapement that Huygens applied the pendulum, by removing the weight from one arm and increasing the length of the other arm. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" He also gave approximate rectifications of circular arcs after the manner of Huygens; and, what is very notable, he made an ingenious and, according to J.E. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" Huygens's famous paper on the laws governing the collision of elastic bodies appeared in the Phil. A History of Science, Volume 5(of 5) Aspects Of Recent Science The fragile musical instruments were on their way to Huygens, in a custom-made packing case. 2010-02-12T17:08:00Z The Second, concerns the Circle of Saturn, in which he hath observed nothing, but what confirms Monsieur Christian Huygens de Zulichem his Systeme of that Planet, published by that worthy Gentleman in the year, 1659. Philosophical Transactions of the Royal Society - Vol 1 - 1666 Giving some Accompt of the present Undertakings, Studies, and Labours of the Ingenious in many considerable parts of the World Huygens proposed to apply his discovery to clocks, and since the evolute of a cycloid is an equal cycloid, he suggested the use of a flexible pendulum swinging between cycloidal cheeks. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" The former generally goes under the name of its inventor, Ramsden, and the latter is named after great Dutch astronomer, Huygens. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers As has already been observed, Huygens first applied the principle to the governing of clocks. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use The total shipping price was eight shillings, which included a trusted carrier to deliver the precious cargo safely to Huygens's door. 2010-02-12T17:08:00Z Huygens endeavoured to supply this want, and applied his mechanical ingenuity in constructing a clock that could be relied upon to keep accurate time. The Astronomy of Milton's 'Paradise Lost' A novelty, nevertheless, to astronomers it still remained in 1656, when Huygens discerned, "as it were, an hiatus in the sky, affording a glimpse of a more luminous region beyond." A Popular History of Astronomy During the Nineteenth Century Fourth Edition The Huygens eyepiece consists of two plano-convex lenses whose focal lengths are in the ratio of three to one. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers The pendulum was first adopted for controlling the motion of the wheels by Christian Huygens, a distinguished Dutch mechanician, in 1659. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use Would Huygens please send the hat as soon as the viols had arrived, and he judged them to be to his satisfaction? 2010-02-12T17:08:00Z Huygens originated the theory by which it is believed that light is produced by the undulatory vibration of the ether; he also discovered polarization. The Astronomy of Milton's 'Paradise Lost' It is possible that the monumental domes and huge movable tubes of our present observatories will, in a few decades, be as much things of the past as Huygens's "aerial" telescopes. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Descartes suggested a method which Huygens put into practice. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon" Among other writers, Leibnitz and Huygens give testimony which is the more valuable as being critical. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Christiaan Huygens went on to become a distinguished scientist, while his older brother came to England with William III in 1688, as his personal secretary. 2010-02-12T17:08:00Z He was the second son of Constantine Huygens, an eminent diplomatist, and secretary to the Prince of Orange. The Astronomy of Milton's 'Paradise Lost' The advent of the pendulum, invented probably by Christian Huygens, a Dutch mathematician, opened up no end of complications for the early clockmakers. Christopher and the Clockmakers Huygens invents and applies the pendulum to clocks. The Great Events by Famous Historians, Volume 11 Various theories have been advanced by scientists to account for the phenomenon, and the two most noted views are the corpuscular, promulgated by Sir Isaac Newton, and the undulatory, enunciated by Huygens and Euler. Practical Mechanics for Boys Lasting love The Huygens story made me feel the need to acknowledge something like the same strategy in my own family. 2010-02-12T17:08:00Z The largest and most remarkable of all the nebul� is that known as the Great Nebula in Orion, which was discovered and delineated by Huygens in the middle of the seventeenth century. The Astronomy of Milton's 'Paradise Lost' The only fluid planetary rings which we can examine—those of Saturn—have been closing in on the planet since the days of Huygens, and eventually will be united with the body of the planet. Fables of Infidelity and Facts of Faith Being an Examination of the Evidences of Infidelity A few years later, Huygens wrote a book, called "Cosmotheoros," in maintenance of the same thesis. The Destiny of the Soul A Critical History of the Doctrine of a Future Life It was n't until fifty years later that a Dutchman named Huygens discovered the real cause of the variation. The Mayor of Warwick Huygens in the seventeenth century studied the laws of refraction and reflection and devised optical apparatus for various purposes. Artificial Light Its Influence upon Civilization Foremost among astronomers of less conspicuous eminence who made important discoveries in this century we find the name of Huygens. The Astronomy of Milton's 'Paradise Lost' Huygens attempted to correct these irregularities in the verge escapement in watches by amplifying the arc of oscillation of the balance itself. Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology Of the five known satellites of Saturn at the close of the 17th century, Huygens had discovered the fourth; Cassini the others. Biographies of Distinguished Scientific Men It was not, however, till the time of Huygens that a method was devised of continuing its motions, and registering the number of its oscillations. A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery. With a Short Explanation of Some of the Principal Natural Phenomena. For the Use of Schools and Families. Enlarged and Revised Edition. Almost equal surprise is excited by the tardiness of observation of the nebulous spots in Andromeda and Orion, first described by Simon Marius and Huygens. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 Huygens next directed his attention to the construction of telescopes, and displayed much skill in the grinding and polishing of lenses. The Astronomy of Milton's 'Paradise Lost' One thing is certain, that the right of priority of the discovery and the recognition of the entire world has been incontestably bestowed upon Huygens. Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology "Well," said Jack, "when you have made some discovery that will enrol your name with Descartes, Huygens, Cassini, and such gentlemen, you will do us the honor of letting us know." Willis the Pilot The invention of pendulum clocks took place about the middle of the seventeenth century; and the honour of the discovery is disputed between Galileo and Huygens. The Mirror of Literature, Amusement, and Instruction Volume 17, No. 491, May 28, 1831 The attention of the world thus once awakened, Huygens and Cassini applied themselves to ascertain the figure of the earth. Blackwood's Edinburgh Magazine — Volume 55, No. 342, April, 1844 In 1656, Huygens, with a telescope constructed by himself, was enabled to solve the enigma which for so many years baffled the efforts of the ablest astronomers. The Astronomy of Milton's 'Paradise Lost' Huygens, who had discovered and corrected the irregularities in the oscillations of the pendulum, did not think of those of the balance with the spiral spring. Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology About the middle of the seventeenth century, Huygens proposed the pendulum clock for finding the longitude at sea; but it was unfit for the purpose, for many and obvious reasons. A General History and Collection of Voyages and Travels - Volume 18 Historical Sketch of the Progress of Discovery, Navigation, and Commerce, from the Earliest Records to the Beginning of the Nineteenth Century, By William Stevenson Huygens, however, contests the priority, and made a pendulum clock before 1658; and he insists, that if ever Galileo had entertained such an idea, he never brought it to perfection. The Mirror of Literature, Amusement, and Instruction Volume 17, No. 491, May 28, 1831 It was the rhymed narrative of the eighteenth century, written with endless care and reflection, and in his case with so superior a treatment of language that no Dutch poet since Huygens had approached it. Library of the World's Best Literature, Ancient and Modern — Volume 4 Huygens perceived the shadow of the ring thrown on the planet, and was able to account in a satisfactory manner for all the phenomena observed in connection with its variable appearance. The Astronomy of Milton's 'Paradise Lost' Five only of these were known at the close of the seventeenth century; of which Cussiric discovered four, and Huygens one. The Story of the Herschels The application of the pendulum to clocks, one of the most beautiful and useful acquisitions which astronomy, and consequently navigation and geography have made, was owing to the ingenuity of Huygens. A General History and Collection of Voyages and Travels - Volume 18 Historical Sketch of the Progress of Discovery, Navigation, and Commerce, from the Earliest Records to the Beginning of the Nineteenth Century, By William Stevenson At the last, little Huygens, taking advantage of the increasing loudness of mynheer's tones, had ventured a blast on his new trumpet, and Wolfert had hastily attempted an accompaniment on the drum. Hans Brinker; or, the Silver Skates At the same time, a Hollander, Christian Huygens, was trying to perfect an engine in which gun-powder was used to cause regular explosions in much the same way as we use gasoline in our motors. The Story of Mankind The only aether which has survived is that which was invented by Huygens to explain the propagation of light. The Project Gutenberg Encyclopedia Volume 1 of 28 Huygens, the astronomer and inventor of the clock was a pensioner of the King of France. The History of Education; educational practice and progress considered as a phase of the development and spread of western civilization The celebrated English geometrician, Huygens, visited Ninon during a sojourn at Paris in the capacity of ambassador. Life, Letters, and Epicurean Philosophy of Ninon de L'Enclos The Celebrated Beauty of the Seventeenth Century After breakfast the boys went to the police court, accompanied by Huygens Kleef and his daughter. Hans Brinker; or, the Silver Skates In these words of Huygens it must strike us how he first provides an explanation for a series of phenomena as if this explanation were induced from the phenomena themselves. Man or Matter Huygens' recent judgement that it is marred by an "affected style and pretentious vocabulary." The Deeds of God Through the Franks This Hartsocher also contested with Huygens the invention of a new method of calculating the distance of a fixed star. Letters on England To Hooke's contemporary, Huygens, who was the originator of the general doctrine of undulation as the explanation of light, Young renders full justice also. A History of Science — Volume 3 This was the Rood Leeuw or Red Lion, kept by one Huygens Kleef, a stout Dutchman with short legs and a very long pipe. Hans Brinker; or, the Silver Skates In the field of optics, also, Huygens has added considerably to science, and his work, Dioptrics, is said to have been a favorite book with Newton. A History of Science — Volume 2 The first powerful telescope of this type was made by Huygens and his brother. A History of Science — Volume 2 Still later the celebrated Huygens hit upon the idea of using the melting and the boiling point of water as fixed points in a scale of measurements, which first gave definiteness to thermometric tests. A History of Science — Volume 2 Huygens discovered also that an object placed in the common focus of the two lenses of a Kepler telescope appears distinct and clearly defined. A History of Science — Volume 2 The idea of applying a spring to the balance-wheel was not original with Huygens, however, as it had been first conceived by Robert Hooke; but Huygens's application made practical Hooke's idea. A History of Science — Volume 2 During the later part of his life, however, Huygens again devoted himself to inventing and constructing telescopes, grinding the lenses, and devising, if not actually making, the frame for holding them. A History of Science — Volume 2 It was of twelve feet focal length, and enabled Huygens to discover a new satellite of Saturn, and to determine also the true explanation of Saturn's ring. A History of Science — Volume 2 But in 1656 Huygens invented the necessary machinery for maintaining the motion of the pendulum and perfected several accurate clocks. A History of Science — Volume 2 Huygens was the descendant of a noble and distinguished family, his father, Sir Constantine Huygens, being a well-known poet and diplomatist. A History of Science — Volume 2 In this controversy, the subject of which attracted wide attention, Huygens was completely victorious; and Hooke, being unable to refute Huygens's arguments, exhibited such irritability that he increased his already general unpopularity. A History of Science — Volume 2 In fact, one was scarcely possible without the other, and as it happened it was the same man, Huygens, who perfected Kepler's telescope and invented the pendulum clock. A History of Science — Volume 2 Huygens's micrometer was a slip of metal of variable breadth inserted at the focus of the telescope. A History of Science — Volume 2 We have seen that the question as to the nature of color had commanded the attention of such investigators as Huygens, but that no very satisfactory solution of the question had been attained. A History of Science — Volume 2 Likewise, he first proposed the wave theory of light; although it was Huygens who established it on its present foundation. A History of Science — Volume 2 Huygens was one of the first to adapt the micrometer to the telescope—a mechanical device on which all the nice determination of minute distances depends. A History of Science — Volume 2 But here again Huygens played a prominent part by first applying the coiled balance-spring for regulating watches and marine clocks. A History of Science — Volume 2 And a few days later, January 5, 1669, Huygens sent in his "Rules Concerning the Motion of Bodies after Mutual Impulse." A History of Science — Volume 2 It would seem from certain papers, now in the library of the University of Leyden, and included in Huygens's papers, that Lippershey was probably the first to invent a telescope and to describe his invention. A History of Science — Volume 2 Accuracy as to time is absolutely essential in astronomy, but until the invention of Huygens's clock there was no precise, nor even approximately precise, means of measuring short intervals. A History of Science — Volume 2 In contending in its favor Huygens pointed out that the unaided eye is unable to appreciate an angular space in the sky less than about thirty seconds. A History of Science — Volume 2 With this new telescope a much clearer field of vision was obtained, so much so that Huygens was able to detect, among other things, a hitherto unknown satellite of Saturn. A History of Science — Volume 2 This was only one of the many telling arguments advanced by Huygens. A History of Science — Volume 2 |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。